K&N Engineering

An enclosed air box design helps protect the filter and inlet air from the heat of the engine bay, and the air box lid allows for quick and easy access to the filter without tools. A high-density...

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an...

K&N is the inventor of the Air Intake System and has over 50 years of experience in the performance filtration industry. Proudly designed and manufactured in the USA, this premium cold air intake...

The K&N VF8000 Heavy Duty Cabin Air Filter replaces the factory cabin air filter on most 2002 and newer Freightliner trucks, including Century Class, Columbia and Coronado, and Cascadia models...

Gain a guaranteed increase in horsepower and torque with K&N cold air intake system featuring madrel-bent aluminum intake tube. Each system is paired with a washable, reusable High-Flow Air Filter...

Gain a guaranteed increase in horsepower and torque with K&N cold air intake system featuring madrel-bent aluminum intake tube. Each system is paired with a washable, reusable High-Flow Air Filter...

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an...

Gain a guaranteed increase in horsepower and torque with K&N cold air intake system featuring madrel-bent aluminum intake tube. Each system is paired with a washable, reusable High-Flow Air Filter...

K&N charge pipe kits are made of free-flowing, mandrel-bent aluminum tubes designed to replace the restrictive factory intercooler piping on specific turbo charged vehicles and offer a wide range of...

Gain a guaranteed increase in horsepower and torque with K&N cold air intake system featuring madrel-bent aluminum intake tube. Each system is paired with a washable, reusable High-Flow Air Filter...

An enclosed air box design helps protect the filter and inlet air from the heat of the engine bay, and the air box lid allows for quick and easy access to the filter without tools. A high-density...

Gain a guaranteed increase in horsepower and torque with a K&N cold air intake system. Each system is paired with a washable, reusable high-flow air filter featuring oiled cotton filter media. The...